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Finding the Fourth Proportional to 2,933.79, 4,401.36 and 959.51

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Solution

The fourth proportional to 2,933.79, 4,401.36 and 959.51 is: 1,439.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,933.79 : 4,401.36 = 959.51 : x
  2. Step 2: Convert to fraction form
    2,933.79/4,401.36 = 959.51/x
  3. Step 3: Cross multiply
    2,933.79x = 4,401.36 × 959.51
  4. Step 4: Simplify right side
    2,933.79x = 4,223,126.93
  5. Step 5: Solve for x
    x = 4,223,126.93/2,933.79
  6. Step 6: Final answer
    x = 1,439.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.